Home / 106,405.35-159,631.38-31,531.35

Finding the Fourth Proportional to 106,405.35, 159,631.38 and 31,531.35

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Solution

The fourth proportional to 106,405.35, 159,631.38 and 31,531.35 is: 47,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,405.35 : 159,631.38 = 31,531.35 : x
  2. Step 2: Convert to fraction form
    106,405.35/159,631.38 = 31,531.35/x
  3. Step 3: Cross multiply
    106,405.35x = 159,631.38 × 31,531.35
  4. Step 4: Simplify right side
    106,405.35x = 5,033,392,913.76
  5. Step 5: Solve for x
    x = 5,033,392,913.76/106,405.35
  6. Step 6: Final answer
    x = 47,303.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.